Home / 28,108.83-42,165.69-11,470.02

Finding the Fourth Proportional to 28,108.83, 42,165.69 and 11,470.02

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Solution

The fourth proportional to 28,108.83, 42,165.69 and 11,470.02 is: 17,206.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.83 : 42,165.69 = 11,470.02 : x
  2. Step 2: Convert to fraction form
    28,108.83/42,165.69 = 11,470.02/x
  3. Step 3: Cross multiply
    28,108.83x = 42,165.69 × 11,470.02
  4. Step 4: Simplify right side
    28,108.83x = 483,641,307.61
  5. Step 5: Solve for x
    x = 483,641,307.61/28,108.83
  6. Step 6: Final answer
    x = 17,206.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.